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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.google.android.exoplayer2.source</a></div>
<h2 title="Interface SequenceableLoader" class="title">Interface SequenceableLoader</h2>
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<dt>All Known Subinterfaces:</dt>
<dd><code><a href="MediaPeriod.html" title="interface in com.google.android.exoplayer2.source">MediaPeriod</a></code></dd>
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<dl>
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="chunk/ChunkSampleStream.html" title="class in com.google.android.exoplayer2.source.chunk">ChunkSampleStream</a></code>, <code><a href="ClippingMediaPeriod.html" title="class in com.google.android.exoplayer2.source">ClippingMediaPeriod</a></code>, <code><a href="CompositeSequenceableLoader.html" title="class in com.google.android.exoplayer2.source">CompositeSequenceableLoader</a></code>, <code><a href="../testutil/FakeAdaptiveMediaPeriod.html" title="class in com.google.android.exoplayer2.testutil">FakeAdaptiveMediaPeriod</a></code>, <code><a href="../testutil/FakeMediaPeriod.html" title="class in com.google.android.exoplayer2.testutil">FakeMediaPeriod</a></code>, <code><a href="hls/HlsMediaPeriod.html" title="class in com.google.android.exoplayer2.source.hls">HlsMediaPeriod</a></code>, <code><a href="MaskingMediaPeriod.html" title="class in com.google.android.exoplayer2.source">MaskingMediaPeriod</a></code></dd>
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<pre>public interface <span class="typeNameLabel">SequenceableLoader</span></pre>
<div class="block">A loader that can proceed in approximate synchronization with other loaders.</div>
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<td class="colFirst"><code>static interface&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="SequenceableLoader.Callback.html" title="interface in com.google.android.exoplayer2.source">SequenceableLoader.Callback</a>&lt;<a href="SequenceableLoader.Callback.html" title="type parameter in SequenceableLoader.Callback">T</a> extends <a href="SequenceableLoader.html" title="interface in com.google.android.exoplayer2.source">SequenceableLoader</a>&gt;</span></code></th>
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<div class="block">A callback to be notified of <a href="SequenceableLoader.html" title="interface in com.google.android.exoplayer2.source"><code>SequenceableLoader</code></a> events.</div>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#continueLoading(long)">continueLoading</a></span>&#8203;(long&nbsp;positionUs)</code></th>
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<div class="block">Attempts to continue loading.</div>
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<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBufferedPositionUs()">getBufferedPositionUs</a></span>()</code></th>
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<div class="block">Returns an estimate of the position up to which data is buffered.</div>
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<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNextLoadPositionUs()">getNextLoadPositionUs</a></span>()</code></th>
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<div class="block">Returns the next load time, or <a href="../C.html#TIME_END_OF_SOURCE"><code>C.TIME_END_OF_SOURCE</code></a> if loading has finished.</div>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isLoading()">isLoading</a></span>()</code></th>
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<div class="block">Returns whether the loader is currently loading.</div>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#reevaluateBuffer(long)">reevaluateBuffer</a></span>&#8203;(long&nbsp;positionUs)</code></th>
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<div class="block">Re-evaluates the buffer given the playback position.</div>
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<h4>getBufferedPositionUs</h4>
<pre class="methodSignature">long&nbsp;getBufferedPositionUs()</pre>
<div class="block">Returns an estimate of the position up to which data is buffered.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>An estimate of the absolute position in microseconds up to which data is buffered, or
     <a href="../C.html#TIME_END_OF_SOURCE"><code>C.TIME_END_OF_SOURCE</code></a> if the data is fully buffered.</dd>
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<h4>getNextLoadPositionUs</h4>
<pre class="methodSignature">long&nbsp;getNextLoadPositionUs()</pre>
<div class="block">Returns the next load time, or <a href="../C.html#TIME_END_OF_SOURCE"><code>C.TIME_END_OF_SOURCE</code></a> if loading has finished.</div>
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<h4>continueLoading</h4>
<pre class="methodSignature">boolean&nbsp;continueLoading&#8203;(long&nbsp;positionUs)</pre>
<div class="block">Attempts to continue loading.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current playback position in microseconds. If playback of the period to
     which this loader belongs has not yet started, the value will be the starting position
     in the period minus the duration of any media in previous periods still to be played.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if progress was made, meaning that <a href="#getNextLoadPositionUs()"><code>getNextLoadPositionUs()</code></a> will return
     a different value than prior to the call. False otherwise.</dd>
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<h4>isLoading</h4>
<pre class="methodSignature">boolean&nbsp;isLoading()</pre>
<div class="block">Returns whether the loader is currently loading.</div>
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<h4>reevaluateBuffer</h4>
<pre class="methodSignature">void&nbsp;reevaluateBuffer&#8203;(long&nbsp;positionUs)</pre>
<div class="block">Re-evaluates the buffer given the playback position.

 <p>Re-evaluation may discard buffered media or cancel ongoing loads so that media can be
 re-buffered in a different quality.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current playback position in microseconds. If playback of this period has
     not yet started, the value will be the starting position in this period minus the duration
     of any media in previous periods still to be played.</dd>
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